Landing page, Section pages and archived sets rendered per request from the
store, with the approved design: hand-written CSS, self-hosted Archivo, a
copper pour line in the Section rail, an admin-only Thumbnail and a text page
index. Media is keyed by Page id so URLs survive publishing, and a Draft's
media needs a session. Includes the scrypt admin auth and the login throttle
the media rule needs.
The store keeps a Menu Set's state in the directory layout (drafts/ versus
published/) and its metadata in a manifest, with publishing as a single
directory rename. Editing is allowed on Drafts only, so a published menu can
never change under a customer. Stages 2 and 3 of docs/plan.md, with tests.